Antenna mounting



J. W. SHUR ANTENNA MOUNTING April 6, 1948.

Filed Dec. 15, 1944 INVENTOR John W\\ SON S-HUK ATTORNEY Patented. 8. I!

2.43am WA MOUNTING JehnWibsnBhir.Saalifl,N.Y.,assignorto Shur-Antenna-Mount Inca Sea Cliff, N. 1., a corporation of New York Application December 15, 19, Serial No. 508,819

I claims. (Cl. 248-43) This invention relates to improvements in antenna mountings adapted for use in connection with receiving or sending apparatus.

While a majority of the radio receiving sets are in private homes where an antenna is necessary, especially for television and frequency modulation, as far as known, very little has been done to provide means for suitably mounting an antenna. The nailing of amast with braces or B B" wires to a house roof is very unsatisfactory and unsightly, and involves considerable time and labor. Guy wires interfere with the radio signal. The problem of how to mount an antenna on the ordinary house has always bothered service men.

The primary object of the present invention is, therefore, to provide an improved antenna mounting which will be permanent and which will be easy to install with a minimum of time.

A further object of the invention is to provide an antenna mounting which is versatile in its adaptability for use in a wide variety of conditions and positions where antenna are to be mounted.

Another object of the invention is to provide an antenna mounting which is simple to manufacture and which is adaptable to mass production manufacture.

Still another object of the invention is to provide an improved mounting or holder for an antenna mast which permits ready adjustment of the antenna with respect to the direction and angle of the radio signals involved.

An important feature of this invention is an improved antenna mounting comprising a metal platform adapted to be mounted in a horizontal position, as for example, on the ridge of a roof, a vertical pipe or tubular member attached to said platform for receiving an antenna mast, braces attached to opposite edges of said platform by a pivot connection, said braces being adapted to be attached to the sloping sides of the roof regardless of the angle for holding said platform in horizontal position, and means for adjustably securing the antenna mast in said Pipe.

The braces attached to the platform are preferably provided with a hinged leaf or plate for securing the brace to any surface in an eflective manner regardless of its angle to the platform.

Other objects, features and advantages of the improved antenna mounting of the present invention will be apparent to those skilled in the art from the following detailed description taken in connection with the accompany ng drawings forming a part of this application.

, as other parts of the mounting are preferably made of relatively heavy weather resistant metal plate or cast metal, such as Duralumin, aluminum, bronze, steel, iron, or other suitable metal or other metals, such as iron and steel, may be plated or painted. Two of the diagonally opposite corners of the plate I! are each hinged at I! to a metal bar or link ll, which may, for example, be about eight inches long. In making the hinges I! the corners of the plate Ill may be cut off uniformly to the width of the bar It, rceessed as shown, and drilled edgewise for a press fit pin It which retains the tongue of the bar ll in the recess. The hinge is preferably made with suiilclent accuracy to avoid any appreciable side play so that the bars swing only in the vertical plane through the diagonal of the base ll through the hinges If.

The lower end of each of the bars or arms I is hinged to the edge of alaterall extending plate or leaf it, the edge of which is provided with spaced lugs 20 which engage the edges of the bar I. The lugs 20 are preferably equidistant from the ends of the leaf l8 and they and the end of the bar it are drilled to receive a press flt hinge pin 22. The end corners of the bars I l4 and of the pin-holding members of the platform It are preferably rounded as indicated. so that a full or more swing. at each hinge will be possible.

The platform III, the bars I and the leaves it are provided with countersunk holes in the positions indicated, for the'use of wood screws. The holes in the platform are preferably on the diagonals. For purposes of illustration, the platform It is shown as mounted on the ridge or apex of a roof 24, with the arms ll extending down so that the leaves I 8 engage the opposite sloping surfaces of the roof, to which they are fastened by screws 26. The platform is set horizontal with its free corners directly on and in line with the ridge of the roof. The extending free corners prevent tipping of the mounting when it is held down by the bars l4. The leaves or plates II are parallel to the ridge of the roof and the bars l4 will extend over any ordinary ridge cover or moulding. If desired, wood screws 21 may be used in appropriate holes in the platform M to position the platform on the ridge or other suitable support, but the members i4 and I8, together with the extending free comers of the platform, are adapted to hold the platform in place and provide adequate bracing therefor. Furthermore, the provision of the hinges at opposite ends of the bars l4, and which swing in the same direction, make a very versatile rigid mounting which is adaptable to any pitch of roof or to different pitches on opposite sides of the ridge. It will be apparent that regardless of the pitch, the members l8 will lie flat on the roof. Theleaves I! may be attached to a 1 x 2 inch wood cross piece which may in turn be attached to two adjacent rafters of a roof. Inmounting the bracket, the links or bars l4 are preferably attached with considerable tension so as to hold the platform firmly.

The platform Ill is provided with a vertical pip 2B which is welded or otherwise fixed to the centel; of the platform i0, and which is adapted to holda mast of a radio antenna. The pipe section 28' may, as an example, be one and one half inches in diameter and eight inches long, and is preferably provided with a set screw '32 or a cross pin or other suitable means for retaining the mast I0 and for holding the antenna in its properly oriented position with respect to the source of the signals which are to be received. The platform may be provided with a small hole inside the area of the pipe 28 to insure the drainage of rain water. If desired, a hole may be provided at the bottom of the pipe 28 for this p seralthough caulking compound or other material may I be used to keep out water. 7

The modifiedform of mounting shown in Fig. 2 includes all the elements of that shown in Fig. 1, except for the difference in the arm members. and illustrates the mounting in connection with an antenna.

In Fig. 2, the platform i0 is hinged at l2 as in Fig. 1 to relatively long bent bars 34 which are attached to a roof 36, by means of screws as indicated. The bars 34 are bent at a slight angle at 38 so that their lower section will lie as flat as possible on the sloping portions of the roof. Each bar 34 is provided with a series of holes so that at least one near the bend or at the end will engage any roof slope reasonably well. Two or three screws are desirable in each bar 34 although one of them leaves a portion of the bar slightly spaced from the roof. In certain instances, it is possible to spring the bars 34 sumciently to have two or more screws in each provide a proper fit with the roof.

The mast 30 in Fig. 2 supports an attached cross beam 40 at its center or other selected position. The beam 40 carries a round antenna support 42 which is held in place by a set screw. A pair of insulators 4,4 and 45 bored to fit the support 42 and metal antenna tube elements 48 of a dipole antenna unit. are mounted on the support 42 on each side of the beam 40. Lead wires 50 are connected to the elements 48. A complete antenna would include a reflector element mounted through insulators 44 and 48 on a support 42 on the opposite end of the beam 40. The members 44 and 46 are held in line on the support 42 and at any angle by set screws. The antenna elements may be'rotated to any desired position by rotating the support 42.

The improved antenna mounting of the present invention is convenient and easy to install on almost any roof or other object where it may be desirable to mount an antenna. Furthermore a permanent and rigid mounting is provided which is easy to keep in proper condition, and which handles a complex antenna such as the dipole type illustrated, which is necessary for the reception and transmission of television and frequency modulation signals. Any antenna mast if not round may be readily trimmed to fit in the pipe 28 or be bored to fit over the pipe. A pipe mast may fit either inside or on the outside of the pipe 28.

From the foregoing description it will be apparent that certain modifications in the structure are possible without materially changing the effectiveness of the antenna mounting. For example, both ends of the bars l4 may be made alike so that they will be interchangeable in assembling the mounting, or the hinge elements on members i0 and I4 may be reversed or like the hinge elements between l4 and I8. Such changes are contemplated as coming within the scope of the invention as defined by the claims.

Having described the invention in its preferred form what is claimed as new is:

l. A mounting for an antenna, comprising a rigid fiat metal platform member adapted to rest upon a supporting structure, an upright mast holding member attached to a surface of the platform member at about its center, said platform member having a link member hinged to its edge on opposite sides of said mast holding member, said links being adapted to pivot through a wide are but substantially only in a plane which includes the axis of said mastholding member, holes through said platform for attaching the mounting to a supporting structure, and means by which the links may be attached to the supporting structure.

2. A versatile antenna mounting adapted to support an antenna on the ridge of a building roof, comprising a rigid square platform member adapted to rest horizontally on said ridge with a diagonal in line with the ridge, an upright mast holding member attached to and extending from the upper surface of said platform member adapted to hold an antenna mast, a metal bar hinged in each of the corners of said member at the sides of said ridge, said bars extending down to the sloping sides of the roof, and an attachment plate hinged to the lower end of each bar for attaching the mounting to the roof, said plates being adapted to be attached in a flat position onto the sloping roof surfaces.

3. A versatile antenna mounting adapted to support an antenna on the ridge of a building roof. comprising a rigid rectangular-shaped platform member adapted to rest horizontally on said ridge with a diagonal in line with the ridge, an upright antenna mast-holding member attached to and extending from the upper surface of said platform member adapted to hold an antenna mast, a metal bar attached to each of the corners of said member at the sides of said ridge, said bars extending down to the sloping sides of the roof, holes through said platform member for attaching the member to the ridge of the roof, and means by which said bars may be attached to the sloping roof surfaces.

4; An antenna mounting as defined by claim 3 in which an end :plate of substantial length is flexibly attached to the projecting end of each bar by a hinge connection on the side edge of the 5 7 plate which is adapted to lie flat on and be fastened to the sloping roof surfaces.

5. A mounting for an antenna, comprising a substantially rectangular platform member, an upright mast holding member extending from the upper surface of said platform member, a bar of substantial length attached by an end connection to each of two opposite diagonal corners of said platform member, the bars being attached to the platform by a flexible connection, and a flat plate of substantial length hinged to the end of each bar remote from the platform member by a hinge connection on the side edge of the plate.

6. An antenna mounting adapted to support an antenna on the ridge of a building roof, comprising a rigid metal platform adapted to rest in horizontal position on the ridge of a roof, an upright member extending from the central upper surface of the platform for holding an antenna mast, the platform being of sufficient size that it includes sections adapted to extend substantially out over the sloping roof surfaces from the ridge and along the ridge on opposite sides of the mast-holding member, and a bar of substantie] length flexibly attached by an end connection directly to each edge of the platform section adapted to extend out over a sloping roof surface, the bars being adapted to extend down to and to be attached to the sloping roof surfaces for anchoring the platform in horizontal position on the ridge of the roof.

7. A mounting as defined by claim 6 in which said platform is flat and substantially square, and in which said bars are flexibly attached diagonally opposite each other across said platform.

JOHN WILSON SHUR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Date 

